| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the follow-up property, to torsional deformation at the time of opening/closing a door, of a grommet bridged between a vehicle body and the door, and wire harness, etc., is inserted there through. SOLUTION: In the bellows part 31 of a grommet 3A, elongation is increased by increasing the difference of elevation between crest and valley parts 311 and 312, on one semicircular side surface 31a of the bellows part 31, spirally extending in the longitudinal direction along the direction wherein the bellows is twisted when a door is opened, more than that on another semicircular side surface 31b. The twist of the bellows part 31 when the door is opened can be absorbed by the elongation on one semicircular side surface 31a.</p> |
